/*******************************************************************************
 * Copyright 2011 The fangorn project
 * 
 *        Author: Sumukh Ghodke
 * 
 *        Licensed to the Apache Software Foundation (ASF) under one
 *        or more contributor license agreements.  See the NOTICE file
 *        distributed with this work for additional information
 *        regarding copyright ownership.  The ASF licenses this file
 *        to you under the Apache License, Version 2.0 (the
 *        "License"); you may not use this file except in compliance
 *        with the License.  You may obtain a copy of the License at
 * 
 *          http://www.apache.org/licenses/LICENSE-2.0
 * 
 *        Unless required by applicable law or agreed to in writing,
 *        software distributed under the License is distributed on an
 *        "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *        KIND, either express or implied.  See the License for the
 *        specific language governing permissions and limitations
 *        under the License.
 ******************************************************************************/
package au.edu.unimelb.csse.analyser;

import java.io.IOException;
import java.io.Reader;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Tokenizer;

public class FastStringAnalyser extends Analyzer {

	@Override
	public TokenStream tokenStream(String field, Reader reader) {
		return new FastStringPerThreadTokenizer(reader);
	}
	
	@Override
	public TokenStream reusableTokenStream(String field, Reader reader)
			throws IOException {
		Tokenizer tokenizer = (Tokenizer) getPreviousTokenStream();
		if (tokenizer == null) {
			tokenizer = new FastStringPerThreadTokenizer(reader);
			setPreviousTokenStream(tokenizer);
		} else
			tokenizer.reset(reader);
		return tokenizer;
	}


}
